docs: def cli(env, origin_volume_id, origin_snapshot_id, duplicate_size,
          duplicate_iops, duplicate_tier, duplicate_snapshot_size, billing):
      """Order a duplicate file storage volume."""
      file_manager = SoftLayer.FileStorageManager(env.client)
  
      hourly_billing_flag = False
      if billing.lower() == "hourly":
          hourly_billing_flag = True
  
      if duplicate_tier is not None:
          duplicate_tier = float(duplicate_tier)
  
      try:
          order = file_manager.order_duplicate_volume(
              origin_volume_id,
              origin_snapshot_id=origin_snapshot_id,
              duplicate_size=duplicate_size,
              duplicate_iops=duplicate_iops,
              duplicate_tier_level=duplicate_tier,
              duplicate_snapshot_size=duplicate_snapshot_size,
              hourly_billing_flag=hourly_billing_flag
          )
      except ValueError as ex:
          raise exceptions.ArgumentError(str(ex))
  
      if 'placedOrder' in order.keys():
          click.echo("Order #{0} placed successfully!".format(
              order['placedOrder']['id']))
          for item in order['placedOrder']['items']:
              click.echo(" > %s" % item['description'])
      else:
          click.echo("Order could not be placed! Please verify your options " +
                     "and try again.")